|
Search: id:A147279
|
|
|
| A147279 |
|
Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1000-1100-0111-0001 pattern in any orientation. |
|
+0
1
|
|
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 17, 33, 105, 379, 919, 2871, 9565, 62893, 248053, 1633141, 8782131, 72370235
(list; graph; listen)
|
|
|
OFFSET
|
1,10
|
|
|
EXAMPLE
|
Maximal 10 X 10 example
.0.0.0.0.0.0.1.1.0.0
.0.0.0.0.0.0.1.0.0.0
.0.0.0.0.0.1.1.0.0.1
.0.0.0.0.1.1.0.1.1.1
.0.0.0.1.0.0.1.1.0.0
.0.0.1.1.0.0.1.0.0.0
.1.1.1.0.1.1.0.0.0.0
.1.0.0.1.1.0.0.0.0.0
.0.0.0.1.0.0.0.0.0.0
.0.0.1.1.0.0.0.0.0.0
|
|
CROSSREFS
|
Sequence in context: A111733 A127193 A146236 this_sequence A097478 A147026 A055393
Adjacent sequences: A147276 A147277 A147278 this_sequence A147280 A147281 A147282
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Ron Hardin (rhhardin(AT)att.net), Nov 04 2008
|
|
|
Search completed in 0.002 seconds
|
